US president Donald Trump has called the mass shooting in Las Vegas "an act of pure evil".

The harrowing scenes on the Strip, in Nevada, left at least 58 dead and as many as 515 injured.

The American leader said he will visit Las Vegas on Wednesday to meet first responders and families of the victims.

But, tragically, in the wake of the horrific events, lies and falsehoods are being spread wildly online.

The gunman responsible for the worst mass shooting in modern US history is believed to be a grandfather who lived in a remote desert home.

Stephen Paddock, 64, was named by police as the perpetrator who massacred more than 50 people from a 32nd-floor Las Vegas hotel room.

Stephen Paddock

The Nevada native left more than 50 dead after opening fire on the Route 91 Harvest Festival on the Las Vegas Strip late on Sunday.

But social media was soon awash with trolls circulating false information about the massacre, reports Buzzfeed.

hese are the lies being shared about the shooting;

Picture of Arsenal player Mesut Özil

This twitter account shared a picture of the German football player saying that he was missing. He is not.

Missing porn star

A tweet with a picture of porn star Johnny Sins is also fake.

There are also several other tweets 'searching' for lost family members that have been set up by troll accounts, reports the Liverpool Echo.

Far-right spread fake news

A couple of far-right websites are circulating fake news around the shooting.

Gateway Pundit claimed that a man named Geary Danley was the shooter after far-right trolls shared the bogus claims on social media. The post has since been deleted.

Wayne Root, a conservative media personality, tweeted that the shooting was a "coordinated Muslim terror attack".

There were also conspiracy theories that the alleged shooter, Stephen Paddock, was affiliated with anti fascist communities. This is untrue as his brother has since told American reporters that he had no political affiliations.